21680826084

素因数分解:

$2^2\times 3^2\times {\mathrm{47}}^1\times {\mathrm{3407}}^1\times {\mathrm{3761}}^1$

素因数の和:7225

約数の個数: 72

約数和(自身を含む): 56001673728

約数和(自身を除く): 34320847644

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 47, 94, 141, 188, 282, 423, 564, 846, 1692, 3407, 3761, 6814, 7522, 10221, 11283, 13628, 15044, 20442, 22566, 30663, 33849, 40884, 45132, 61326, 67698, 122652, 135396, 160129, 176767, 320258, 353534, 480387, 530301, 640516, 707068, 960774, 1060602, 1441161, 1590903, 1921548, 2121204, 2882322, 3181806, 5764644, 6363612, 12813727, 25627454, 38441181, 51254908, 76882362, 115323543, 153764724, 230647086, 461294172, 602245169, 1204490338, 1806735507, 2408980676, 3613471014, 5420206521, 7226942028, 10840413042, 21680826084]

約数ペア:

[(1, 21680826084), (2, 10840413042), (3, 7226942028), (4, 5420206521), (6, 3613471014), (9, 2408980676), (12, 1806735507), (18, 1204490338), (36, 602245169), (47, 461294172), (94, 230647086), (141, 153764724), (188, 115323543), (282, 76882362), (423, 51254908), (564, 38441181), (846, 25627454), (1692, 12813727), (3407, 6363612), (3761, 5764644), (6814, 3181806), (7522, 2882322), (10221, 2121204), (11283, 1921548), (13628, 1590903), (15044, 1441161), (20442, 1060602), (22566, 960774), (30663, 707068), (33849, 640516), (40884, 530301), (45132, 480387), (61326, 353534), (67698, 320258), (122652, 176767), (135396, 160129)]